Corn planter



April12,1932. F HOL-FCR.: 1,853,274

(.JORN PLANTER Filed Aug. 5, 1930 2 Sheets-Sheet l lll Altorney Aprill2, I1932. F. HoLToRF 1,853,274

' CORN PLANTER Filed Aug. 5, 1930 2 Sheets-Sheet 2 nvenlor Allorney y .YPatented Apr.; 12,. 193,2,

FRITZ HOLTORF, or CENTRAL CITY, NEBRASKA.`

Y CORN rLANTnaA Application mefinugust 5,1930. ,serial No. 473,137.

This invention relates to new and useful improvementsin corn plantersand has for its primary object to provide, in a manner as hereinafterset forth, an agricultural machine of this character embodying'f novelmeansy for dropping lthefseed without the use'of a check wire which isthe practice in rwidespread use at present.

Other objects ofthe invention are to prola vide a corn planter of thecharacter described which will be comparatively simple in construction,strong, durable, highly efficient in operation and vwhich may bemanufactured at comparatively low cost.

l With all of the foregoing still further objects and advantages of theinvent-ion may n become apparent from a study ofthe followingspecication', :taken in connection with the accompanying drawingswherein 'like characters of reference designate corresponding partsthroughoutthe several views, and

wherein:

Figure 1 isa view in side elevation ofv a c corn planter constructed inaccordance with 25 this invention. f

Figure 2 is a top plan view thereof.

Figure 3 is a detail view in section taken substantially ontlie line3.-3 of Figure 2.

Figure 4 is a fragmentary detail view showing a portion of one of thewheels with the lever actuating arm projecting therefrom.

Figure 5 is a detail perspective view of one i of the actuating armswhich are mounted on the wheels.

Referring to the drawings in detail, it will be seen that the referencenumeral 1 designates a frame of appropriate construc- Y tion beneath anintermediate portion of which 4G is mounted for rotation thetransversely ex- Y tending aXle2 upon the opposite end portions of whichthe wheels 3 are fixed. A

draft tongue 4 extends forwardly from the frame 1.

Also mounted on the rear portion of the yerfshaft 7 extendingtherebeneath, said rock` er shaft having xed on its opposite endportions the upstandingarms 8.

yALpair'of arms 9 project laterally from opposite sides of the frame 1rearwardly of 5` the hoppers 6 and has ,bolted on their free endportions, the rearwardly ext-ending brackets 10 having upstandingapertured ears 11 on their free end portions between which thelongitudinally curved operating a0 levers-12 are pivotally mounted at anintermediate point.

As'clearly seen in Figure 1 ofthe drawings, those portions of the levers412 which are disposed forwardly lof the ypivot points 66 of 'saidllevers curve yupwardly and arecoupledto Vtheupstanding armsS bythelinks 13. A coil spring 14 is provided for each of the levers 12 andhas one end anchored there-f l to and its opposite end anchored to the70 brackets 10 for yieldingly maintaining'said levers in operativeposition. Afstop member 16 is threaded for. adjustment into each of thebrackets 10 for engagement with the respective` levers 12 in a man- 75ner to limit the vswinging movement thereof under the impulse of thecoil springs 14.

Pairs of headedkk bolts 17 are mounted in circumferentially spacedrelation on the inner periphery of each of the wheels 3 s0 and projectinwardly therefrom. Slidably` mountedon each pair of the bolts 17 is anoutwardly projecting lever operatingjarmk 18 which is preferably ofsubstantially T` shaped cross section. v

' 'Coil ysprings 19 are mounted on the bolts 17 and have one end engagedwith the heads thereonl and their *opposite ends engaged with the arms18 in a vmanner to yieldingly maintain said arms against the inner`periph- 90V ery of the wheels. rlhe frame structure 2() ismountedforswinging movement on a rear portion` of the main frame l1 and hasjournalled for rotation thereon the wheels 21. A toothed segment 22 ismounted on the frame 95 1 at one side thereof and above thefswingableframe 20. Y

`Mounted for swinging movement on th segment 22 is a hand operated lever23 which is secured` in adjustedv position against 100 swinging movementthrough the medium of a suitable latch mechanism 24 engageable with saidsegment 22.

The lever 23 is operatively connected through the swingahle frame 20through the medium of the arcuate rod 25. Coil spring 26 has one endconnected to the swingable frame 20 and its opposite end connected tothe cross bar 27, extending between an intermediate portion of the sidemembers ofthe main frame 1. v

The coil spring 26 yieldingly pulls the swingable frame 2O forwardly ina manner to engage the wheels 21 with the ground. A marker 27 ispivotally mounted for swinging movement as at 28 on the forward portionof the planter and said marker is operatively connected to the footlever 29 on the frame l through the medium of the cable 30 which istrained over the pulley 31,

As best seen in Figure 2 of the drawings, a air of the markers 27 isprovided, same being mounted on the opposite end portions of theVtransverse rockable shaft 32 having the arm 33fixed on an intermediateportion thereof and to the free end portion of which arm the cable 30 isconnected.

The markers 27 are normally maintained in raised or inoperative positionthrough the medium of the coil springs 34. In operation, when thekplanter is moved over theground, the Wheels 3, being lixed to theopposite ends of the axle 2 will rotate in unison and the operating arms18 thereon will successively engage the adjacent end portions of thelevers 12 in a manner to swing the forward ends of said levers upwardlyand rearwardly and rock the shaft 7 through the medium of the arms 8 andthe connecting links 13.

As before stated, the shaft 7 whenrocked, operates the seed depositingmechanism in the usual manner. The mounting of the arms 18 on the bolts17 on the wheels 3 permits said arms to move inwardly when same comeinto contact with a protuberance on the ground, such as a rock. In thismanner, damage to the arms from this source is avoided. l

When turning around the operator swings the lever 23 rearwardly in amanner to swing the frame 2O forwardly through the medium of the' rod 25and to engage the wheels 21 with the groundand a continued forwardmovement of the swingable frame 20 will result in elevating the wheels 3out of engagement vwith the ground. e

The operative position of. the wheels2lA is clearly illustrated inbroken lines in Figure 1 of the drawings. The wheels 21 also constitutemeans for moving the planter from place to place when not planting.

It is believed that the many advantages of a corn planter constructed inaccordance with this invent-ion will be readily understood, although thepreferred embodiment of the invention is as illustrated and described,it isto be understood that changes in the details of construction may behad which will fall within the scope of the invention as claimed.

What is claimed is:

A planter having supporting wheels and seed depositing mechanism, groupsof spaced, parallel headed bolts anchored in the felliesA of the wheelsand extending inwardly therefrom, arms slidably mounted on 'the groupsof bolts and projecting laterallyfrom the wheels, springs encircling thebolts and having one end engaged with the bolt heads and their otherends engaged with the varms for toward the fel es, an means foroperating the seed de siting mechanism disposed in thepath o :the armsfor engagement and actuation thereby.

In testimony whereof I aflix my signature.

FRITZ HOLTORF.

1yieldin ly urging said arms

